我将如何向Activemq发送消息 [英] How will I send messages to Activemq

问题描述

我从不从事JMS的工作.最近我下载了Activemq，并将所有conf/activemq-*.xml文件中的端口号从61616更改为61617.我从命令提示符处运行以下命令，并在浏览器上打开控制台页面.

I never work on JMS. Recently I downloaded Activemq and changed port no from 61616 to 61617 in all conf/activemq-*.xml files.I run the following command from command prompt and open console page on browser.

  C:\Users\Infratab Bangalore\Desktop\Queueing\apache-activemq-5.8.0\bin>activemq

现在我想使用JMS从Java代码向Activemq发送消息.为此，我编写了以下代码.并使用Apache Tomcat服务器运行我的代码.它不起作用

Now I want to send messages from java code using JMS to Activemq.For this I wrote the following code. And run my code using Apache Tomcat server.it's not working

此代码在Eclipse中实现.

This code is implemented in Eclipse.

package PackageName;

import java.io.IOException;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.activemq.ActiveMQConnectionFactory;

public class MessageProducer extends HttpServlet {
    @Override
    protected void service(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException {
        try {
            //created ConnectionFactory object for creating connection 
            ConnectionFactory factory = new ActiveMQConnectionFactory("admin", "admin", "tcp://localhost:61617");
            //Establish the connection
            Connection connection = factory.createConnection();
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            Queue queue = session.createQueue("Test");
            //Added as a producer
            javax.jms.MessageProducer producer = session.createProducer(queue);
            // Create and send the message
            TextMessage msg = session.createTextMessage();
            msg.setText("TestMessage");
            producer.send(msg);
        } catch (Exception e) {
            // TODO: handle exception
        }
    }
}

我遇到以下错误

 java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
org.apache.activemq.ActiveMQPrefetchPolicy.<clinit>(ActiveMQPrefetchPolicy.java:30)
org.apache.activemq.ActiveMQConnectionFactory.<init>(ActiveMQConnectionFactory.java:88)
PackageName.MessageProducer.service(MessageProducer.java:20)
javax.servlet.http.HttpServlet.service(HttpServlet.java:723)

你能建议我，我在哪里写错了.

can you suggest me, where I wrote wrong.

谢谢.

推荐答案

从以下位置下载common-logging.ja r文件:

Download common-logging.ja r file from

http://grepcode .com/snapshot/repo1.maven.org/maven2/commons-logging/commons-logging/1.1.3/

并将其放入您的类路径中，然后再次运行.

and place this into your classpath and run again.

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